A019800 - OEIS

%I #15 Sep 08 2022 08:44:44

%S 4,6,6,3,2,8,7,9,6,3,1,9,4,2,4,8,4,0,6,7,2,7,0,7,2,1,2,4,3,3,6,8,0,1,

%T 7,5,2,7,6,0,4,7,2,5,9,8,3,7,5,1,7,6,8,4,6,0,1,6,1,9,2,8,9,5,5,5,2,0,

%U 2,0,0,9,8,8,2,5,3,1,4,6,9,9,0,0,5,2,5,9,9,8,3,5,9,0,9,5,5,5,0

%N Decimal expansion of sqrt(2*e)/5.

%H Ivan Panchenko, <a href="/A019800/b019800.txt">Table of n, a(n) for n = 0..1000</a>

%e 0.4663287963194248406727072124336801752760472598375176846...

%t RealDigits[Sqrt[2 E]/5,10,120][[1]] (* _Harvey P. Dale_, Jan 19 2016 *)

%o (PARI) default(realprecision, 100); sqrt(2*exp(1))/5 \\ _G. C. Greubel_, Sep 08 2018

%o (Magma) SetDefaultRealField(RealField(100)); R:= RealField(); Sqrt(2*Exp(1))/5; // _G. C. Greubel_, Sep 08 2018

%K nonn,cons

%O 0,1

%A _N. J. A. Sloane_